Metabones Lens Adapters>T Speed Booster Ultra 0.71x Adapter for Canon EF Lens to BMPCC 4K Camera

Mount Your Canon EF Lens to BMPCC 4K

The Metabones T Speed Booster ULTRA 0.71x Adapter for Canon EF Lens to BMPCC 4K allows you to securely mount a full-frame Canon EF-mount lens to your Blackmagic Design Pocket Cinema Camera 4K MFT-mount camera. The adapter’s optics help to increase the apparent angle of view and provide a 1-stop increase for the camera over the lens’s aperture range. This 0.71x adapter also supports Cinema EOS lens for auto iris and servo zoom, and it includes AF (autofocus) support with external 5V power via the micro-USB port.

If a lens intended for 35mm film or similarly sized full-frame camera sensors is connected to a camera with a Micro Four Thirds-sized sensor, it would project an image larger than the Micro Four Thirds sensor was built to accept. Able to capture only the centre portion of the projected image, the effective angle of view of the lens would be narrowed, creating an in-camera “crop factor.” The T Speed Booster ULTRA 0.71x adapter condenses the light from a lens designed for 35mm film or “full-frame” camera sensors and projects it onto a Micro Four Thirds sensor. This allows the Blackmagic Pocket Cinema Camera 4K with a Micro Four Thirds sensor to utilize more of the light gathered by a connected lens, which effectively reduces the crop factor while making available to the sensor an additional 1-stop of light for each of the lens’s f/stop settings.

This adapter is constructed from aluminium for durability while minimizing weight and its mounting rings are made with brass to further prevent wear and tear. The internal lens elements are designed to provide optical clarity as well as colour fidelity, and a detachable tripod foot is included and features 1/4″-20 threads as well as compatibility with Arca-Swiss tripod heads.

The T Speed Booster ULTRA 0.71x adapter supports electronic communication between an attached camera and lens. If the lens includes autofocus, image stabilization, and camera-controlled aperture functions, this adapter is intended to allow those features to be used. Also, if an attached lens is capable of generating EXIF metadata when used with a directly compatible camera, the T Speed Booster ULTRA 0.71x adapter is designed to allow that information to be saved along with image files generated with a combination of the lens, a BMPCC 4K camera, and the adapter.

• Allows a full-frame Canon EF-mount lens to be used with a Blackmagic Design Pocket Cinema Camera 4K MFT-mount camera
• Maximizes apparent angle of view of combined camera and lens
• Cinema EOS lens support, including AF (requires external 5V power via micro-USB port), auto iris, and servo zoom
• Provides a 1-stop increase for the camera over the lens’s aperture range
• Integrated jog dial for incremental aperture adjustment and push-button access to lens’s widest aperture setting when used with a compatible Panasonic camera
• 6 lens elements in 4 groups for optical clarity as well as colour fidelity
• Supports electronic communication between camera and lens to enable autofocus, image stabilization, on-camera aperture control, and EXIF metadata generation when possible
• Internal coating minimizes reflections within the adapter barrel
• Detachable, Arca-Swiss compatible tripod foot with 1/4″-20 threads matches the BMPCC 4K camera height
• Aluminium components for weight reduction
• Brass mounting rings prevent wear and tear
• Locking mechanism for secure attachment of lens with push-button release

Camera Compatibility

Blackmagic Pocket Cinema Camera 4K

Blackmagic Pocket Cinema Camera HD (original version)

Blackmagic Micro Cinema Camera

Blackmagic Micro Studio Camera 4K

Blackmagic Studio Camera 4K

Blackmagic Studio Camera

Lens Compatibility

Canon EF 100-400mm f/4.5-5.6L IS II USM

Canon EF 100-400mm f/4.5-5.6L IS USM (I)

Canon EF 100mm f/2.8L IS USM Macro

Canon EF 135mm f/2L USM

Canon EF 16-35mm f/2.8L II USM

Canon EF 17-35mm f/2.8L USM

Canon EF 17-40mm f/4L USM

Canon EF 200mm f/2.8L II USM

Canon EF 24-105mm f/4L IS USM (I)

Canon EF 24-70mm f/2.8L II USM

Canon EF 28-135mm f/3.5-5.6 IS USM

Canon EF 28-70mm f/3.5-4.5 II

Canon EF 28-80mm f/3.5-5.6 III USM

Canon EF 300mm f/2.8L IS II USM

Canon EF 300mm f/4L IS USM

Canon EF 400mm f/5.6L USM

Canon EF 40mm f/2.8 STM

Canon EF 50mm f/1.2L USM

Canon EF 50mm f/1.4 USM

Canon EF 50mm f/1.8 II

Canon EF 50mm f/1.8 STM

Canon EF 70-200mm f/2.8L IS II USM

Canon EF 70-200mm f/4L IS II USM

Canon EF 70-200mm f/4L USM

Canon EF 70-300mm f/4-5.6L IS USM

Canon EF 8-15mm f/4L USM Fisheye

Canon EF 85mm f/1.2L II USM

Sigma 135mm f/1.8 DG HSM Art 017

Sigma 24-105mm f/4 DG HSM Art 013

Sigma 24-35mm f/2 DG HSM Art 015

Sigma 30mm f/1.4 DC HSM Art 013

Sigma 35mm f/1.4 DG HSM Art 012

Sigma 50-500mm f/4.5-6.3 DG OS HSM

Sigma 50mm f/1.4 DG HSM (not Art)

Tamron 10-24mm f/3.5-4.5 VC HLD B023

Tamron 18-250mm f/3.5-6.3 A18

Tamron 18-270mm f/3.5-6.3 B003

Tamron 24-70mm f/2.8 VC USD A007 (G1)

Tamron 28-300mm f/3.5-6.3 A06

Tamron 35-150mm f/2.8-4 VC OSD A043

Tamron 70-200mm F/2.8 Di VC USD A009

Tokina 11-16mm f/2.8 AT-X PRO (I)

Zeiss 18mm f/3.5 ZE

Canon EF-Extender (Teleconverter)